* {
    margin: 0;
    padding: 0;
    list-style: none;
    box-sizing: border-box;
}

.swiper {
    width: 800px;
    height: 500px;
    position: relative;
    overflow: hidden;
    margin: auto;
}

.container {
    width: 4000px;
    height: 100%;
    position: absolute;
    left: -0px;
}

.container .slide {
    width: 800px;
    height: 100%;
    float: left;
    line-height: 500px;
    text-align: center;
    font-size: 200px;
    font-weight: bold;
    border: 1px solid #ccc;
}

.prev,
.next {
    top: 50%;
    transform: translate(0, -50%);
    color: #555;
    font-size: 36px;
    position: absolute;
}

.next {
    right: 0;
}

.page {
    bottom: 20px;
    transform: translate(-50%);
    left: 50%;
    position: absolute;
}

.page li {
    display: inline-block;
    width: 40px;
    height: 40px;
    border-radius: 50%;
    background: rgba(0, 0, 0, 0.3);
}

.page li.active {
    background: skyblue;
}
